The coordinates of the vertices of quadrilateral ABCD are A(−4, −1), B(−1, 2), C(5, 1), and D(1, −3). Drag and drop the choices into each box to correctly complete the sentences. The slope of AB¯¯¯¯¯ is Response area, the slope of BC¯¯¯¯¯ is Response area, the slope of CD¯¯¯¯¯ is Response area, and the slope of AD¯¯¯¯¯ is Response area. Quadrilateral ABCD Response area a parallelogram because Response area.